JP2648163B2 - Etching agent - Google Patents

Etching agent

Info

Publication number
JP2648163B2
JP2648163B2 JP63058083A JP5808388A JP2648163B2 JP 2648163 B2 JP2648163 B2 JP 2648163B2 JP 63058083 A JP63058083 A JP 63058083A JP 5808388 A JP5808388 A JP 5808388A JP 2648163 B2 JP2648163 B2 JP 2648163B2
Authority
JP
Japan
Prior art keywords
edta
etching
tooth
dentin
etching agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP63058083A
Other languages
Japanese (ja)
Other versions
JPH01230509A (en
Inventor
宣男 中林
建二 宝田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAN MEDEIKARU KK
Original Assignee
SAN MEDEIKARU KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAN MEDEIKARU KK filed Critical SAN MEDEIKARU KK
Priority to JP63058083A priority Critical patent/JP2648163B2/en
Publication of JPH01230509A publication Critical patent/JPH01230509A/en
Application granted granted Critical
Publication of JP2648163B2 publication Critical patent/JP2648163B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 この発明はムシ歯治療を目的とした処置をするときに
行なわれる歯牙の表面処理、或いは、ムシ歯その他の理
由で欠損を生じた歯牙の修復に際し行なわれる歯牙の表
面処理に適した前処理剤組成物を提供するにある。従っ
て、歯科医療分野で利用される。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment of a tooth which is performed when performing a treatment for treating a tooth, or a restoration of a tooth which has a defect due to a tooth or other reasons. It is an object of the present invention to provide a pretreatment agent composition suitable for a tooth surface treatment to be performed. Therefore, it is used in the field of dentistry.

(従来の技術) 潤滑状態にある口腔内で、欠損を生じた歯牙を修復す
るとき、歯牙と材料とを接着性組成物により、接着し
て、より強固にくっつけるため、被着面を前処理するこ
とが行なわれている。この前処理によって、歯牙表面に
微細な凹凸構造をつくり、接着面積を拡げるとともに、
機械的な嵌合や投錨効果を求めることができる。
(Prior Art) When restoring a defective tooth in a lubricated oral cavity, the surface to be adhered is pre-treated so that the tooth and the material are adhered to each other with an adhesive composition and adhered more firmly. Is being done. By this pre-treatment, while creating a fine uneven structure on the tooth surface, expanding the bonding area,
A mechanical fitting or anchoring effect can be obtained.

ここにおいて採られている前処理方法に、酸エッチン
グ法がある。使用されるものとして、リン酸、塩酸など
の無機酸、ギ酸、クエン酸などの有機酸があげられる。
これらはいづれも歯牙面の脱灰に関与すると考えられて
いる。脱灰能、接着性向上においてリン酸が最も優れて
おり、多用されている。しかしながら、リン酸を代表と
する酸エッチング法は、エナメル質に対する接着強度に
は著しく関与したが象牙質への接着については効果乏し
く、未だ探索の段階である。
An acid etching method is one of the pretreatment methods employed here. Examples of those used include inorganic acids such as phosphoric acid and hydrochloric acid, and organic acids such as formic acid and citric acid.
All of these are thought to be involved in the demineralization of the tooth surface. Phosphoric acid is most excellent in improving decalcification ability and adhesiveness, and is widely used. However, the acid etching method typified by phosphoric acid is significantly involved in the adhesive strength to enamel, but has little effect on the adhesion to dentin, and is still in the search stage.

(発明が解決しようとする問題点) 接着という手段で歯牙を修復するとき或いはムシ歯の
進行を予防するときエナメル質であると象牙質であると
を問わず接着強度を高めるためにエッチングと称する前
処理を施すが、エナメル質部分でのエッチングに用いら
れるエッチング剤を象牙質にそのまま適用することは象
牙質が有機物に富んだ層であることと、該層は歯髄に近
いため、それへの影響が憂慮されていることなどからみ
て、種々の問題を引き起こす。
(Problems to be Solved by the Invention) When restoring teeth by means of bonding or preventing the progress of worm teeth, etching is called etching to increase the bonding strength regardless of whether it is enamel or dentin. Although pretreatment is performed, applying the etching agent used for etching in the enamel portion to dentin as it is is that the dentin is a layer rich in organic substances, and since this layer is close to the dental pulp, It causes various problems in view of concerns about the effects.

しかし、象牙質への接着を強固にするためにはスメア
層の除去を行なうことが必要であると考えられており、
既に象牙質用の前処理剤が市販されている。それら市販
品はクエン酸を主成分とするもの、エチレンジアミン四
酢酸(EDTA)を主成分とするものなどである。しかし、
クエン酸はエナメル質の前処理に使用されるリン酸に次
ぐ強いエッチング剤であるので歯髄への作用が憂慮され
るところである。
However, it is thought that it is necessary to remove the smear layer in order to strengthen the adhesion to dentin,
Pretreatment agents for dentin are already on the market. Those commercially available products include those mainly containing citric acid and those mainly containing ethylenediaminetetraacetic acid (EDTA). But,
Since citric acid is a strong etching agent next to phosphoric acid used for pretreatment of enamel, its action on dental pulp is of concern.

歯髄に対し安全でしかもスメア層の除去に効果がある
とされているEDTAを主成分とする前処理剤は多少効果の
点において弱いとされている。
The pretreatment agent containing EDTA as a main component, which is said to be safe for the dental pulp and effective in removing the smear layer, is said to be somewhat weak in terms of effect.

本発明者らは特開昭61−183203においてEDTAまたはそ
のアルカリ金属塩とEDTA金属錯塩とを組み合わせること
によって象牙質の好適なエッチング剤としての使用が可
能となることを見出したが、更にこの系の発展を考え短
時間にしかも好ましい作用機能を保持しつつ弱点とされ
ている点の改善に成功した。加えて、単に象牙質のみな
らずエナメル質のエッチング剤としても、多用されてい
るエッチング剤と同等の効果を発揮することが判った。
The present inventors have found in Japanese Patent Application Laid-Open No. 61-183203 that the use of EDTA or an alkali metal salt thereof and an EDTA metal complex salt makes it possible to use dentin as a suitable etching agent. In view of the development of, it has succeeded in improving the weak points in a short time while maintaining the preferable function. In addition, it has been found that not only dentin but also an enamel etchant has the same effect as an etchant that is frequently used.

(問題点を解決するための手段) 本発明によって提供される歯牙象牙質のエッチング剤
はEDTAアミン塩とEDTA金属錯体アミン塩とを成分とする
ものである。
(Means for Solving the Problems) The tooth dentin etching agent provided by the present invention comprises an EDTA amine salt and an EDTA metal complex amine salt as components.

ここにおいてEDTAアミン塩とはEDTAアンモニウム塩、
EDTAトリエチルアミン塩、EDTAトリエタノールアミン塩
などを指称し、EDTA金属錯体アミン塩とは上記EDTAアミ
ン塩の金属(例えば、鉄、コバルト、マンガン、カルシ
ウム、銅など)錯体を指称する。
Here, the EDTA amine salt is EDTA ammonium salt,
EDTA triethylamine salt, EDTA triethanolamine salt, and the like are referred to, and EDTA metal complex amine salt refers to a metal (eg, iron, cobalt, manganese, calcium, copper, etc.) complex of the EDTA amine salt.

これらは通常水溶液として用いる。濃度は特に限定さ
れる訳ではないが0.1〜1.0モル濃度で良い。
These are usually used as aqueous solutions. The concentration is not particularly limited, but may be 0.1 to 1.0 molar.

(発明の効果) 本発明によって提供される組成物は、ほぼ中性であ
り、これを象牙質のエッチング剤に使用すると非常に短
時間に、しかも、10%クエン酸−3%塩化第二鉄(10−
3:現在象牙質のエッチング剤として使用されている。)
にてエッチングしたときに得られる接着強度と同等の結
果がえられるうえに、(10−3)では憂慮される歯髄へ
の影響を心配しなくてもよく、更に(10−3)やリン酸
に比較して脱灰量が少なく歯牙へ与える損傷を減らせる
ことも従来技術に較べ本発明の利点といえる。本発明に
よって提供される組成物は、エナメル質のエッチング剤
として使用しても治療上十分な接着強度が得られる。
(Effect of the Invention) The composition provided by the present invention is almost neutral, and when this is used as an etching agent for dentin, it can be used in a very short time, and 10% citric acid-3% ferric chloride. (10-
3: Currently used as an etchant for dentin. )
In addition to obtaining the same results as the adhesive strength obtained when etching in step (10-3), there is no need to worry about the effect on the dental pulp which is a concern in (10-3). It is also an advantage of the present invention that the amount of demineralization is smaller than that of conventional technology and damage to teeth can be reduced. The composition provided by the present invention provides a therapeutically sufficient bond strength even when used as an enamel etchant.

以下本発明を具体的に説明するために実施例を記述す
る。
Hereinafter, examples will be described in order to specifically explain the present invention.

実施例1 0.5M EDTAアンモニウム塩と0.5M EDTA鉄アンモニウ
ム塩とを3:2の比で混合し均一な溶液を得た(pH7.4)。
得られた溶液40μlで、エメリペーパー#600で研削し
た牛歯の象牙質面を10秒間、30秒間エッチング処理した
のち、蒸溜水でよく洗浄し、気銃で表面に付着した水分
を除去し、被着面とした。添加モノマーとして4−META
を2%含むメチルメタクリレートにTBBを添加し、筆積
法にてポリメチルメタクリレート粉末とともに被着面に
とり、直系5.00mmのアクリル棒を被着面に垂直に立て、
30分間性静置し37℃の水中に1日浸漬したのち接着強度
を測定した。
Example 1 A 0.5M EDTA ammonium salt and a 0.5M EDTA iron ammonium salt were mixed at a ratio of 3: 2 to obtain a uniform solution (pH 7.4).
The dentin surface of the bovine tooth ground with Emery Paper # 600 was etched with 10 μl for 30 seconds with 40 μl of the obtained solution, and then thoroughly washed with distilled water, and moisture attached to the surface was removed with an air gun. The surface to be adhered. 4-META as added monomer
TBB is added to methyl methacrylate containing 2%, and a 5.00 mm acrylic rod is set vertically on the surface to be adhered together with the polymethyl methacrylate powder by a brush method.
After standing for 30 minutes and immersing in water at 37 ° C. for 1 day, the adhesive strength was measured.

エッチング 脱灰量 接着強度 (sec) (μg/cm2) (MPa) 10 8.9±1.3 13.5±1.5 30 11.1±1.8 14.6±2.1 実施例2 実施例1で用いたと同じエッチング液を同量使った牛
歯エナメル質を同様にエッチング処理したほかは実施例
1と同じにして接着強度を測定した。
Etching Decalcification amount Adhesive strength (sec) (μg / cm 2 ) (MPa) 10 8.9 ± 1.3 13.5 ± 1.5 30 11.1 ± 1.8 14.6 ± 2.1 Example 2 Cow using the same amount of etching solution as used in Example 1 The adhesive strength was measured in the same manner as in Example 1 except that the tooth enamel was similarly etched.

エッチング 脱灰量 接着強度 (sec) (μg/cm2) (MPa) 10 8.2±1.7 10.9±0.4 30 13.4±1.5 9.9±1.6 実施例3 EDTA銅アンモニウムを使用した外は実施例2と同じに
して接着強度を測定した。
Etching Deashing amount Adhesive strength (sec) (μg / cm 2 ) (MPa) 10 8.2 ± 1.7 10.9 ± 0.4 30 13.4 ± 1.5 9.9 ± 1.6 Example 3 Same as Example 2 except that EDTA copper ammonium was used. The adhesive strength was measured.

エッチング 脱灰量 接着強度 (sec) (μg/cm2) (MPa) 10 1.0±0.2 9.8±2.3 30 1.6±0.4 10.9±0.8 実施例4 EDTAコバルトアンモニウムを使用した外は実施例2と
同じにして接着強度を測定した。
Etching Demineralization Bond strength (sec) (μg / cm 2 ) (MPa) 10 1.0 ± 0.2 9.8 ± 2.3 30 1.6 ± 0.4 10.9 ± 0.8 Example 4 Same as Example 2 except that EDTA cobalt ammonium was used. The adhesive strength was measured.

エッチング 脱灰量 接着強度 (sec) (μg/cm2) (MPa) 10 4.7±0.4 9.6±2.1 30 5.5±0.4 12.7±2.9Etching Demineralization Adhesive strength (sec) (μg / cm 2 ) (MPa) 10 4.7 ± 0.4 9.6 ± 2.1 30 5.5 ± 0.4 12.7 ± 2.9

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】エチレンジアミン四酢酸アミン塩とエチレ
ンジアミン四酢酸金属錯体アミン塩とを成分としている
歯牙エッチング用剤
1. A tooth-etching agent comprising an ethylenediaminetetraacetic acid amine salt and an ethylenediaminetetraacetic acid metal complex amine salt as components.
JP63058083A 1988-03-10 1988-03-10 Etching agent Expired - Lifetime JP2648163B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63058083A JP2648163B2 (en) 1988-03-10 1988-03-10 Etching agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63058083A JP2648163B2 (en) 1988-03-10 1988-03-10 Etching agent

Publications (2)

Publication Number Publication Date
JPH01230509A JPH01230509A (en) 1989-09-14
JP2648163B2 true JP2648163B2 (en) 1997-08-27

Family

ID=13074027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63058083A Expired - Lifetime JP2648163B2 (en) 1988-03-10 1988-03-10 Etching agent

Country Status (1)

Country Link
JP (1) JP2648163B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009131250A1 (en) 2008-04-25 2009-10-29 サンメディカル株式会社 Easily removable curable composition for dental use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5080940B2 (en) * 2007-11-06 2012-11-21 日本歯科薬品株式会社 Dental surface treatment agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009131250A1 (en) 2008-04-25 2009-10-29 サンメディカル株式会社 Easily removable curable composition for dental use

Also Published As

Publication number Publication date
JPH01230509A (en) 1989-09-14

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